clip: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/clip - from package: geomview

You may install the required package with command apt-get install {package}

Error in other languages:
clip: bevel nie gevind nie
clip: comandă negăsită
clip: comando não encontrado
clip: commande introuvable
clip: command not found
clip: käsku ei ole
clip: không tìm thấy lệnh
clip: komanda nerasta
clip: Kommando nicht gefunden.
clip: kommandot finns inte
clip: komut yok
clip: nie znaleziono polecenia
clip: níor aimsíodh an t-ordú
clip: no se encontró la orden
clip: no s'ha trobat l'ordre
clip: opdracht niet gevonden
clip: parancs nem található
clip: perintah tidak ditemukan
clip: príkaz nenájdený
clip: příkaz nenalezen
clip: команда не найдена
clip: командата не е открита
clip: 命令找不到
clip: コマンドが見つかりません